I moved to Bitwarden from 1Password. Use it on iOS. Can’t say I miss anything at all. I pay the yearly fee for it too to support them because it’s pretty damn awesome.
Any particular reason for leaving 1Password? I've been using it for almost a year now and haven't had any complaints. Though I literally did just switch from Android to iOS yesterday, so maybe I'll find a reason shortly :P
I paid for the desktop version of 1Password. When it went subscription based I was annoyed. Started hearing about bitwarden and after trying it (after trying others) I really liked it. So I moved to it cos it was free. But I just got more impressed with it on iOS, windows, and on linux I always have Firefox open so I just use that. I decided to pay for a year to support their effort.
So no particular reason other than not liking the subscription plan of 1Password.